Unraid deployment fixes and generator improvements

- Add Next.js rewrites to proxy API calls through same origin (fixes login/media on werkout.treytartt.com)
- Fix mediaUrl() in DayCard and ExerciseRow to use relative paths in production
- Add proxyTimeout for long-running workout generation endpoints
- Add CSRF trusted origin for treytartt.com
- Split docker-compose into production (Unraid) and dev configs
- Show display_name and descriptions on workout type cards
- Generator: rules engine improvements, movement enforcement, exercise selector updates
- Add new test files for rules drift, workout research generation

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

werkout-frontend/components/plans/DayCard.tsx

@@ -63,7 +63,10 @@ function XIcon({ className = "" }: { className?: string }) {
 
 function mediaUrl(path: string): string {
   if (typeof window === "undefined") return path;
-  return `${window.location.protocol}//${window.location.hostname}:8001${path}`;
+  if (window.location.hostname === "localhost" || window.location.hostname === "127.0.0.1") {
+    return `${window.location.protocol}//${window.location.hostname}:8001${path}`;
+  }
+  return path;
 }
 
 function PlayIcon({ className = "" }: { className?: string }) {
@@ -301,6 +304,7 @@ export function DayCard({
         focus_area: previewDay.focus_area,
         workout_type_id: previewDay.workout_type_id,
         date: previewDay.date,
+        plan_id: previewDay.plan_id,
       });
       onPreviewDayChange(previewDayIndex, newDay);
     } catch (err) {
@@ -421,6 +425,17 @@ export function DayCard({
             )}
           </div>
 
+          {previewDay.warnings && previewDay.warnings.length > 0 && (
+            <div className="rounded-lg border border-yellow-500/30 bg-yellow-500/10 p-2 text-xs text-yellow-200">
+              <p className="font-semibold mb-1">Warnings</p>
+              <ul className="list-disc list-inside space-y-0.5">
+                {previewDay.warnings.map((w, idx) => (
+                  <li key={idx}>{w}</li>
+                ))}
+              </ul>
+            </div>
+          )}
+
           {/* Supersets */}
           {spec && spec.supersets.length > 0 && (
             <div className="flex flex-col gap-2">